[GoneBallisticInAlabama]

Camera lens cleaner should be fine. It is safe on delicate coatings on high-quality lenses.

 

[steved13]

I tried the lens pen, I didn't think it would work well either, until I tried it. Amazed how clean it got it.

Any lens cleaner should work well.

 

[Malicious Compliance]

LensPen works great for all my optics - cameras, red dots, scopes.

LensPen NLP-1

https://www.amazon.com/dp/B007G5NNOW/ref=cm_sw_r_cp_apa_wJ6Yyb3M7M514

 

[sig78257]

Thanks for the replies. I have some camera lense cleaner and I'll order the lense pen. I'm probably being overly careful but the Romeo broke the second day I had it and I don't want to send it back to Sig again.